The IRAS API Marketplace combines industry expertise with innovative technology to deliver digital transformation and to optimise tax-related services and transactions. We believe that developer experience is key to the adoption and success of the Application Programming Interface (API) initiatives, and we would like to collaborate with the developer community to enable rapid adoption. On this portal, you will find the tools and sample code to help you work effectively and get the results you need from our APIs, tools, data and capabilities. 

Some of the services available on API are:

  1. Property tax account balance check
  2. Stamp duty calculator
  3. Listing of GST-registered businesses
  4. Listing of Allowable Income and Expense for Self-employed Individuals
  5. AIS Organisation Search
  6. e-Submission of Commission Income Organisation search

Visit for more information.